Method billingPeriods

src/model/UtilityBill.cpp:741–748

    }

    std::vector<BillingPeriod> UtilityBill_Impl::billingPeriods() const {
      IdfExtensibleGroupVector egs = extensibleGroups();
      std::vector<BillingPeriod> result;
      for (const IdfExtensibleGroup& eg : egs) {
        result.push_back(eg.cast<BillingPeriod>());
      }
      return result;
    }

    void UtilityBill_Impl::clearBillingPeriods() {
      clearExtensibleGroups();